Playing-ball.



PLAYING BALL rApplication filed June 14, 1902.)

(No Model.)

Ato

i UNH-nn STATES PATT (Denton.

ELEA'ZER KEMrsHALn or BOSTON,MASSACHUSETTS.

f` 'sPEoiFIcA'rIoN forming pari f Leners Patent; No. 712,388, datedoctober 2e, 1902.

" 'Application filed June 14. Serial No. 111,768. (No model.) e l T0 allwhom, it may concern;

Be it known that I, ELEAZER KEMPSHALL,`

a strong and durable ball of great flying power. j

In the drawings forming part of this specification, Figure 1 is apart-sectional view of a golf-ball embodying my present improvements.Fig. 2 is a sectional vieWillustrat-ing the mode of building up afilling for the ball, and Fig. 3 is a perspective of one ofthe segmentsused in building the Fig. 2 device.

Upon a center piece A, preferably of plastic material, such asgutta-percha, I apply one upon another numerous thin laminae or layers Bof approximately pure caoutchouc, thereby forming a solid ball C. Eachof the layers preferably consists of hemispherical segments B', as seenat Fig. 3, `although said layers maybe applied in the form of fiatdisks, which by pressure may be caused to conform and adhere to thecenter piece A and also to one another, or, if desired, the rubberplates may be applied in the same manner as the ball-cover sections inapplication Serial No. 103,221. The caoutchouc is similar to rub ber-damor surgeons rubber and is either unvulcanized or acid-cured. Into thecenter of the ball C thus formed I inject gutta-percha or other plasticmaterial inthe manner illustrated in the patents to F. H. Richards, Nos.696,351 and 696,353, of March 25, ,1902, so as to materially enlarge thecenter piece A, as at A', Fig. 1, and hence put the layers B ofcaoutchouc under great tension, each of said layers being materiallyexpanded or stretched,

constructing a golf-.ball which is of small size. Foreign material whichis compara- .tively inelastic not only displaces its bulk of thehighly-elastic caoutchouc, but by its presence also interferes with theaction thereof. `In other words, the mixing of foreign material dentallydriven into a lake or stream it can be readily located and recovered.

' A gutta-percha shell E is preferably formed of hemispherical segments,which may be Welded upon the expanded sphere or filling C under heat andpressure. The layers ofcaoutchouc by adhering to` one another improvethe stability and elasticity of the ball. The heat imparted to the ballat the operation of welding the cover-segments causes the caoutchoucsegments to adhere more firmly. lt will be noted that. the heaviestportion of the structure consists of the shell, which lies at theperiphery of the ball, and by reason of its momentum when the ball is inrotation tends to prolong the ight thereof.

The principal feature ofthe invention consists inthe injection into athick sphere of approximately pure caoutchouc of a mass of materialwhich is hardened to form a solid center piece and in so far as thisfeature is concerned it is obvious that caoutchouc may be otherwiseformed into a sphere Within the scope 0f the invention, and it willfurther be seen that for certain games a cover of other material thangutta-percha may be used or that in some cases the cover may be omitted.

Having described my invention, I claiml. A sphere consisting of adherentlayers of similar soft elastic material and distended IOC up of layersof caoutchouc and distended by gutta-percha injected thereinto.

5. In combination, a sphere consisting ofj adherent layers of softelastic material and distended by an injected core, and a shell ofplastic material upon said sphere.

6. In combination, a sphere consisting of a plurality of adherent layersof soft highlyelastic material inated or distended by a mobile massinjected thereiuto, each of said layers consisting of a plurality ofsegments, and a hard shell of plastic material holding said sphere undercompression.

'7. In a playing-ball, a spherical shell builtup of numerousadherentlayers of caoutchouc and inflated or distended by plasticmaterial injected thereinto, and a shell of gutta-percha upon saidsphere.

8. In a playing-ball, a sphericalshell built up of numerous thin laminasof caoutchouc 2o ELEAZ/'ER KEMPSHALL.

Witnesses:

B. C. STICKNEY, FRED. J. DOLE.

